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What is the Least Common Multiple of 78472 and 78487?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 78472 and 78487 is 6159031864.

LCM(78472,78487) = 6159031864

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Least Common Multiple of 78472 and 78487 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78472 and 78487, than apply into the LCM equation.

GCF(78472,78487) = 1
LCM(78472,78487) = ( 78472 × 78487) / 1
LCM(78472,78487) = 6159031864 / 1
LCM(78472,78487) = 6159031864

Least Common Multiple (LCM) of 78472 and 78487 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78472 and 78487. First we will calculate the prime factors of 78472 and 78487.

Prime Factorization of 78472

Prime factors of 78472 are 2, 17, 577. Prime factorization of 78472 in exponential form is:

78472 = 23 × 171 × 5771

Prime Factorization of 78487

Prime factors of 78487 are 78487. Prime factorization of 78487 in exponential form is:

78487 = 784871

Now multiplying the highest exponent prime factors to calculate the LCM of 78472 and 78487.

LCM(78472,78487) = 23 × 171 × 5771 × 784871
LCM(78472,78487) = 6159031864